Bash function to create a new git remote branch, a new local branch to track it, and then start using that branch

gistfile1.sh

#!/bin/bash
function git-create-branch() {
    if [ $# -ne 1 ]; then
         echo 1>&2 Usage: $0 branch_name
         exit 127
    fi

    branch_name=$1
    # Create the remote branch
    echo "git push origin master:refs/heads/$branch_name"
    git push origin master:refs/heads/$branch_name

    # Make sure the local repo is up to date
    git fetch origin

    # Create the new local branch, have it track the remote branch, and switch to the new branch
    git checkout --track -b $branch_name origin/$branch_name

    # Make sure things are up to date again                                                                         
    git pull
}